BR0209456A - Displacement and seal assembly for stirling cycle machines - Google Patents

Displacement and seal assembly for stirling cycle machines

Info

Publication number
BR0209456A
BR0209456A BR0209456-8A BR0209456A BR0209456A BR 0209456 A BR0209456 A BR 0209456A BR 0209456 A BR0209456 A BR 0209456A BR 0209456 A BR0209456 A BR 0209456A
Authority
BR
Brazil
Prior art keywords
displacer
seal
cylinder
stirling cycle
peripheral surface
Prior art date
Application number
BR0209456-8A
Other languages
Portuguese (pt)
Other versions
BR0209456B1 (en
Inventor
Dale E Kiikka
Original Assignee
Global Cooling Bv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Global Cooling Bv filed Critical Global Cooling Bv
Publication of BR0209456A publication Critical patent/BR0209456A/en
Publication of BR0209456B1 publication Critical patent/BR0209456B1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00—Hot gas positive-displacement engine plants
    • F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00—Hot gas positive-displacement engine plants
    • F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
    • F02G1/053—Component parts or details
    • F02G1/0535—Seals or sealing arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2253/00—Seals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2270/00—Constructional features
    • F02G2270/45—Piston rods

Abstract

"MONTAGEM DE DESLOCADOR E VEDAçãO PARA MáQUINAS DE CICLO STIRLING". A invenção pode impedir vazamento de gás e reduzir a força de fricção enquanto aliviando a tolerância para a fabricação de um deslocador e semelhante para máquinas de ciclo Stirling. O vazamento de gás entre a periferia externa de uma vedação (1) e a superfície periférica interna (5a) de um cilindro (5) é impedido. Por conseq³ência, o acabamento preciso do vão livre radial entre o deslocador (2) e o cilindro (5) não é requerido. Como a diferença de pressão entre os espaços frontal e traseiro do deslocador (2) é pequena, o vazamento de gás é de forma suficiente impedido sem pressionar a vedação (1) contra a superfície periférica interna (5a) do cilindro (5). Por outro lado, como a força de fricção gerada entre as mesmas é de forma significativa pequena, ela não afeta o movimento alternado do deslocador. Como a vedação (1) é proporcionada de modo a não ser restringida axialmente e radialmente, o deslocador é mantido de forma precisa em contato com a superfície periférica interna (5a) do cilindro (5) mesmo se o deslocador (2) se movimentar de forma excêntrica."SHIFT MOUNT AND SEAL FOR STIRLING CYCLE MACHINES". The invention may prevent gas leakage and reduce frictional force while alleviating tolerance for the manufacture of a shifter and similar for Stirling cycle machines. Gas leakage between the outer periphery of a seal (1) and the inner peripheral surface (5a) of a cylinder (5) is prevented. Therefore, the precise finishing of the radial clearance between the displacer (2) and the cylinder (5) is not required. As the pressure difference between the front and rear spaces of the displacer (2) is small, gas leakage is sufficiently prevented without pressing the seal (1) against the inner peripheral surface (5a) of the cylinder (5). On the other hand, since the friction force generated between them is significantly small, it does not affect the reciprocating movement of the displacer. As the seal (1) is provided so as not to be axially and radially constrained, the displacer is precisely maintained in contact with the inner peripheral surface (5a) of the cylinder (5) even if the displacer (2) moves in eccentric shape.

BRPI0209456-8A 2001-06-28 2002-06-17 displacer and seal assembly for stirling cycle machines. BR0209456B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2001196692A JP4012376B2 (en) 2001-06-28 2001-06-28 Displacer and seal assembly for Stirling equipment
JP2001-196692 2001-06-28
PCT/US2002/019036 WO2003001871A2 (en) 2001-06-28 2002-06-17 Displacer and seal assembly for stirling cycle machines

Publications (2)

Publication Number Publication Date
BR0209456A true BR0209456A (en) 2004-07-06
BR0209456B1 BR0209456B1 (en) 2011-09-06

Family

ID=19034450

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0209456-8A BR0209456B1 (en) 2001-06-28 2002-06-17 displacer and seal assembly for stirling cycle machines.

Country Status (6)

Country Link
JP (1) JP4012376B2 (en)
CN (1) CN1255618C (en)
AU (1) AU2002306168A1 (en)
BR (1) BR0209456B1 (en)
DE (1) DE10296964B4 (en)
WO (1) WO2003001871A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100498204C (en) * 2007-12-21 2009-06-10 中国科学院上海技术物理研究所 Device for measuring push piston shift of minitype pneumatic stirling refrigerator
FR3007077B1 (en) 2013-06-18 2017-12-22 Boostheat DEVICE FOR THE THERMAL COMPRESSION OF A GASEOUS FLUID
JP6840511B2 (en) * 2016-10-31 2021-03-10 住友重機械工業株式会社 Injection device
CN111895088B (en) * 2020-06-11 2022-05-24 南通鑫拓封头制造有限公司 Boundary-crossing type seal head and forming method thereof
JP7135134B2 (en) * 2021-02-17 2022-09-12 住友重機械工業株式会社 Injection device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4714008A (en) * 1985-11-21 1987-12-22 Bowers Walter B Piston for internal combustion engines and the like
US5113747A (en) * 1989-01-23 1992-05-19 Pignerol Herve Y High pressure piston sealing system and method of its assembly
US5642618A (en) * 1996-07-09 1997-07-01 Stirling Technology Company Combination gas and flexure spring construction for free piston devices

Also Published As

Publication number Publication date
JP2003021415A (en) 2003-01-24
JP4012376B2 (en) 2007-11-21
WO2003001871A3 (en) 2003-03-13
DE10296964B4 (en) 2006-04-06
DE10296964T5 (en) 2004-07-08
WO2003001871A2 (en) 2003-01-09
CN1255618C (en) 2006-05-10
AU2002306168A1 (en) 2003-03-03
BR0209456B1 (en) 2011-09-06
CN1543532A (en) 2004-11-03

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 17/06/2002, OBSERVADAS AS CONDICOES LEGAIS.

B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 17.06.2022